Dental and temporomandibular joint pathology of the island fox (Urocyon littoralis).
J Comp Pathol
; 200: 23-34, 2023 Jan.
Article
em En
| MEDLINE
| ID: mdl-36630854
ABSTRACT
Museum skull specimens from 318 island foxes (Urocyon littoralis) were examined macroscopically according to predefined criteria. The study population included males (n = 129, 40.6%), females (n = 93, 29.3%) and animals of unknown sex (n = 96, 30.2%), and comprised 182 (57.2%) adults, 118 (37.1%) young adults and 18 (5.7%) individuals of unknown age, with juveniles and neonates excluded. The number of teeth present for examination was 11,438 (85.6%) with 1918 (14.4%) absent artefactually, 4 (0.03%) absent congenitally and 243 (1.82%) lost ante mortem through acquired tooth loss. There were seven persistent deciduous teeth (0.05%) in three specimens and 11 supernumerary teeth (0.08%) in 10 specimens. Teeth with extra roots were found in 38 skulls (11.9%) with 0.48% of all teeth affected. Two (0.63%) specimens had one tooth with an abnormal form. Fifty-eight (18.2%) specimens had bone fenestrations. Of the alveoli examined, 5361 (46.9%) displayed bony changes suggestive of periodontitis, with 315 (99.1%) of skulls affected. Of the teeth available for examination in 310 specimens (97.5%), most (n = 6,040, 52.8%) had some degree of attrition or abrasion. Fractures affected 1217 (11.0%) of the teeth present in 266 specimens (83.6%). Twenty-three periapical lesions (0.20%) were present in 16 skulls (5.03%). Evidence of temporomandibular joint osteoarthritis was found in seven specimens (0.02%) on either the mandibular head of the condylar process or on the mandibular fossa of the temporal bone.
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Texto completo:
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Bases de dados:
MEDLINE
Assunto principal:
Dente
/
Doenças Dentárias
/
Transtornos da Articulação Temporomandibular
Limite:
Animals
Idioma:
En
Revista:
J Comp Pathol
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Estados Unidos